| Patents for F04B 37 - Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups (3,029) |
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| 04/18/1990 | EP0363497A1 Cryogenic adsorption pump |
| 04/11/1990 | EP0363334A1 A method for the manufacture of a vacuum insulating structure and an insulating structure so produced |
| 03/27/1990 | US4910965 Means for periodic desorption of a cryopump |
| 03/22/1990 | WO1990002878A2 Electronically controlled cryopump |
| 03/13/1990 | US4907413 Regenerable cryosorption pump with movable physical barrier and physical barrier thereof |
| 02/28/1990 | EP0232325B1 Cryopump with exhaust filter |
| 01/30/1990 | US4896511 Optimally staged cryopump |
| 01/10/1990 | EP0349577A1 An optimally staged cryopump. |
| 12/27/1989 | EP0347473A1 Cryogenic condensation pump |
| 12/27/1989 | EP0347452A1 Counterflow leak detector with high and low sensitivity operating modes. |
| 12/26/1989 | US4889319 Bakeable vacuum systems |
| 12/20/1989 | EP0347367A2 Process for producing a vacuum |
| 12/19/1989 | US4887941 Method and apparatus for starting series-coupled vacuum pumps |
| 12/14/1989 | WO1989011896A1 Regenerable cryosorption pump with movable physical barrier and physical barrier thereof |
| 12/12/1989 | US4886599 Filter cartridge with series elements for chemical and mechanical filtration |
| 12/06/1989 | EP0344333A1 Cryogenic adsorption pump |
| 12/06/1989 | EP0344290A1 Vacuum apparatus. |
| 11/29/1989 | EP0343914A1 Evacuation apparatus and method |
| 11/09/1989 | DE3814389A1 Method for diminishing residual gas in high-vacuum systems by getter layers and for generating these, and correspondingly coated high-vacuum systems |
| 11/01/1989 | CN1005642B Process for production of vaccum |
| 10/25/1989 | EP0338764A2 Vacuum pumps |
| 10/25/1989 | EP0338113A1 Method for the adaptation of a 2-stage cryogenic pump to a specific gas |
| 10/25/1989 | CN1036618A Separator and biasing plate |
| 10/18/1989 | EP0337917A1 Separator and biasing plate |
| 10/18/1989 | EP0337681A2 Vacuum pump systems |
| 10/18/1989 | EP0336992A1 Method and device for testing the operation of a cryogenic pump |
| 10/17/1989 | US4873913 Dry roughing pump having a gas film bearing |
| 10/17/1989 | US4873833 Apparatus comprising a high-vacuum chamber |
| 09/27/1989 | EP0334286A1 Vacuum cryopump with improved first stage |
| 09/21/1989 | WO1989008781A1 Cryogenic adsorption pump |
| 09/21/1989 | WO1989008780A1 Cryogenic adsorption pump |
| 09/20/1989 | EP0332658A1 Enhanced density modified isoplanar process. |
| 09/13/1989 | EP0332107A1 Turbomolecular pump and method of operating the same |
| 09/05/1989 | US4862697 Cryopump with vibration isolation |
| 08/29/1989 | US4860546 Vacuum system with molecular flow line |
| 08/08/1989 | US4854825 Multi-stage vacuum pump |
| 08/02/1989 | CN1034418A Vertical three-stage oxygen compressor for bottle anhydrous oxygen |
| 07/27/1989 | WO1989006565A1 Cryosorption surface for a cryopump |
| 07/25/1989 | US4850806 Controlled by-pass for a booster pump |
| 07/13/1989 | WO1989006317A1 Cryogenic condensation pump |
| 07/04/1989 | US4845360 Counterflow leak detector with high and low sensitivity operating modes |
| 06/29/1989 | WO1989005917A1 Cryogenic adsorption pump |
| 06/29/1989 | WO1989005689A1 Vacuum apparatus |
| 06/21/1989 | EP0320956A2 Screw type vacuum pump |
| 06/15/1989 | WO1989005514A1 Counterflow leak detector with high and low sensitivity operating modes |
| 06/13/1989 | US4838035 Continuous cryopump with a method for removal of solidified gases |
| 06/06/1989 | US4835972 Flex-line vibration isolator and cryopump with vibration isolation |
| 05/30/1989 | US4835441 Directly heated sorption getter body |
| 05/30/1989 | US4834631 Separator and biasing plate |
| 05/30/1989 | US4834136 Pressure relief filter and valve and cryopump utilizing the same |
| 05/30/1989 | US4833899 Cryopump with vibration isolation |
| 05/23/1989 | US4832715 Fine particle collector arrangement for vacuum pumps |
| 05/23/1989 | US4831829 Solid sorbent |
| 04/18/1989 | US4822251 Vacuum pump having an rpm-measuring device |
| 04/11/1989 | CA1252300A1 Cryopump with exhaust filter |
| 04/04/1989 | US4817390 Cryogenic compressor |
| 03/29/1989 | EP0308846A1 Method for starting vacuum pumps connected in series, and device for carrying out the method |
| 03/28/1989 | US4816046 Fine particle collector trap for vacuum evacuating system |
| 03/28/1989 | US4815303 Vacuum cryopump with improved first stage |
| 02/14/1989 | US4803845 Controllable throttle for a vacuum pump |
| 02/14/1989 | CA1249983A1 HIGH PRESSURE RECIPROCATING MOTION COMPRESSOR AND USE THEREOF FOR THE POLYMERIZATION OF ETHYLENE AND .alpha.-OLEFINS |
| 01/10/1989 | US4797068 Vacuum evacuation system |
| 01/03/1989 | US4795131 Vacuum controller |
| 12/28/1988 | EP0297061A2 Vacuum insulated superconducting electrical conductor employing a getter device |
| 12/28/1988 | EP0296817A2 Liquid dispensing apparatus |
| 12/20/1988 | US4792283 For transporting liquid by bubbles |
| 12/20/1988 | US4791791 For removing gaseous species |
| 12/13/1988 | US4790726 Air free reciprocatory vacuum pump |
| 12/07/1988 | EP0294224A2 Bakeable vacuum systems |
| 11/22/1988 | US4785851 Vacuum security valve having a buffer volume |
| 11/17/1988 | EP0185702B1 Cryopump with improved second stage array |
| 11/09/1988 | EP0289858A1 Fine particle collector trap for vacuum evacuating system |
| 10/25/1988 | CA1243472A1 Pnictide trap for vacuum systems |
| 10/20/1988 | DE3710782A1 Method and device for pumping out vapours and/or vaporous mixtures and/or gas-vapour mixtures or similar media |
| 09/14/1988 | CN87208695U Pumping dish for round molecule pump |
| 09/13/1988 | US4770609 Two-stage vacuum pump apparatus and method of operating the same |
| 09/07/1988 | EP0280892A2 Vaccum pump with a device for counting the revolutions |
| 08/31/1988 | EP0280264A2 Multi-stage vacuum pump |
| 08/31/1988 | CN88100310A Vacuum distributor |
| 08/24/1988 | EP0118442B1 Radial vane gas throttling valve for vacuum systems |
| 08/23/1988 | US4765229 Portable vacuum pump for desoldering purposes |
| 08/16/1988 | US4763483 Cryopump and method of starting the cryopump |
| 08/10/1988 | EP0277615A2 Fine particle collector arrangement for vacuum pumps |
| 08/03/1988 | EP0276346A1 Control throttle for a vacuum pump, especially a cryogenic pump |
| 07/28/1988 | WO1988005500A1 An optimally staged cryopump |
| 07/19/1988 | US4757689 Cryopump, and a method for the operation thereof |
| 06/28/1988 | US4753744 Use of perfluoropolyethers in mechanical pumps |
| 06/16/1988 | WO1988004473A1 Enhanced density modified isoplanar process |
| 05/31/1988 | US4747749 Machine for compressing a fluid, having a plurality of compression stages in series |
| 05/31/1988 | US4747276 Helium compressor apparatus |
| 05/25/1988 | EP0268009A1 Filter cartridge |
| 05/24/1988 | US4745761 Vibration damped cryogenic apparatus |
| 05/17/1988 | US4744288 Axial piston pumps and motors |
| 04/12/1988 | US4736591 Cryopumps |
| 03/09/1988 | CN87207315U 升华泵泵体 Sublimation pump body |
| 03/01/1988 | US4727724 Crysosorption pump for the rotor of an electric machine having a superconducting exciter winding |
| 02/24/1988 | EP0256234A2 Vacuum generating system |
| 02/16/1988 | US4724677 Continuous cryopump with a device for regenerating the cryosurface |
| 02/02/1988 | US4722191 High vacuum pumping system |
| 01/19/1988 | US4719938 Self-cleaning valve and cryopump utilizing the same |